Kate Middleton and Prince William have made a return to the royal calendar, this time with new titles.

The couple was joined by their two eldest children, 9-year-old Prince George and 7-year-old Princess Charlotte, for an important royal outing at the King's First Commonwealth Day.

The move suggests that the royal couple is preparing their children for their future roles.

One of the highlights of the event was the fashion, particularly the sensational skirt suit worn by the Princess of Wales.

The vintage-inspired outfit consisted of a floral jacket worth £2,000 and a matching skirt worth £1,000, both designed by Urdem.

The outfit was accessorized with a navy saucer hat with bow detail.

Kate's outfit, also a skirt suit, showed her evolving style strategy as she approaches the coronation.

She took a risk with the outfit, which is tailored perfectly but outside her usual comfort zone.

Additionally, Kate is no longer afraid to go for fashion, something she previously shied away from.

Her outfit was a nod to Queen Elizabeth II, who remains a source of regal style inspiration.

The Princess of Wales Three Feathers Brooch, a royal family heirloom dating back to 1863, was pinned on Kate's outfit, along with sapphire and diamond earrings that once belonged to Princess Diana.

Kate carried navy gloves in a clutch as she walked into Westminster Abbey, holding onto her hat to save it from flying away in the wind.

Prince William complimented his wife in a navy suit with a blue tie, while the couple was welcomed by members of the Ngati Rinana, or London, Maori club who performed at the Great West Door ahead of the Commonwealth service.

Although fans were disappointed not to see Prince George, Princess Charlotte, and Prince Louis at the service, the timing of the event would have clashed with their school day.

The royals arrived at the abbey at 2.40 pm, meaning the youngsters would have needed to take a half-day off school to attend.

Experts and royal fans alike have praised Prince George and Princess Charlotte for their impeccable behavior at recent royal events.

Meanwhile, Prince Louis, who stole the show during the Platinum Jubilee last year, doesn't often join his family at royal events, presumably due to his young age.

The royal family is keen to remain exciting in the face of an almost unending stream of stories about Harry and Meghan.

A chic new silhouette courtesy of a designer once cited as a favorite of the former actress is one way to do that.

During the event, the King paid tribute to his beloved mother, Queen Elizabeth, who dedicated her long and remarkable life in service to the Commonwealth family.

The monarch wore a grey prince-type suit, white shirt, silver polka-dot tie, and black dress shoes.

Camilla, on the other hand, wore a bright cobalt blue dress and a matching hat with feathers, black sheer tights, black pumps, and a matching clutch.

Overall, the event was a success, with the royal family showing their commitment to their duties and preparing their children for their future roles.

Kate's outfit showed her evolving style strategy, while the King paid tribute to his mother, the late Queen Elizabeth, who dedicated her life to the Commonwealth family.